Improvement in calisthenic pulleys and spring-cords



AUNITED STATES PATENT OFFICE;

JOHN WOOD, on New YORK, N. Y.

IMPROVEMENT IN CALISTHENIC PULLEYS AND SPRING-COPiDS. Y

Specification forming part of Letters Patent No. 43.149, dated June 14, 1864.

To all whom it may concern:

Be it known that I, JOHN WOOD, of New York, N. Y., have invented an Improvement in Oalisthenic Pulleys and SpringOords, of which the following is a specification.

My invention is designed to exercise the arms, Src., and is an arrangement of handles, suitable for the grasp of the hand, connected by a cord passing over a pulley or pulleys with an elastic spring or springs. The advantage of springs for this purpose over Weights consists in the fact of their gradually-increasing resistance in proportion to their distention, so that the degree of exercise may be varied at will by simply pulling the handles t )a greater or lessdistance.

Figures l and 2 represent, respectively, a front and side view of a board to which the pulley s, springs, 85e., are attached.

It will be observed that two diii'erent arrangements ot' pulleys, &c., are shown in the e', and fastened to the springj.

What I claim as my own invention, and desire to secure by Letters Patent, is-

The construction and arrangement of springeords, substantially as described, for Calisthenic purposes.

JOHN WOOD.

Witnesses:

OHAs. MORRILL, J. A. Sr. J. Ross. 

